| abstract |
A crosslinking agent comprising a compound represented by the following formula (1). (Wherein R 1 , R 2 and R 3 are each independently a hydrogen atom, a fluorine atom, an alkyl group, a fluorinated alkyl group, or a substituted or unsubstituted aryl group. The plurality of R 1 may be the same or different good, a plurality of R 2 is or different may gatahdo. of a plurality of R 3 may be different may gatahdo. However, R 1, R 2, R and at least one of the three is a hydrogen atom, R 1, R 2, R 3 M is an integer of 2 to 6, and 1 is an integer of 0 to 2. The hydrogen of the benzene ring may be substituted.) |